m

Question

m<B=2m<A, m<C=3m<A
find the measures of angles A,B,c in triangle ABC
How do i do this?

aum · Answer

Sum of the three angles of a triangle = 180 degrees.

anonymous · Answer

so i would just divide 180 by 3?

aum · Answer

Can you post a screenshot of the problem?

anonymous · Answer

yes, 1 sec

aum · Answer

Okay, it is not necessary.

aum · Answer

Let m<A = x
m<B = 2m<A = 2 * x = 2x
m<C = 3m<A = 3 * x = 3x

Sum of three angles of a triangle = 180 degrees.
Therefore, x + 2x + 3x = 180
6x = 180
x = 30

m<A = x = 30 degrees
m<B = 2x = 2*30 = 60 degrees
m<C = 3x = 3*30 = 90 degrees

anonymous · Answer

http://tinypic.com/m/i71w8l/3

anonymous · Answer

okay so 17 would be
m<A=x+10
m<B=x
m<C=2x-10?

aum · Answer

For 17, make m<A = x

aum · Answer

m<A = x
m<B = m<A + 10 = x + 10
m<C = 2m<A - 10 = 2x - 10

x + x + 10 + 2x - 10 = 0
solve for x.
Put it back in the three angles and calculate them.

anonymous · Answer

wouldnt it =180?